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What Makes Popcorn Pop?
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Who Was Theodor Geisel?
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Who Was Saint Patrick?
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Who Invented Escalators?
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Who Invented Money?
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Who Invented Sticky Notes?
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Who Was Elie Wiesel?
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Who Was Lou Castro?
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Who Was Clara Barton?
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Who Was Mother Goose?
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Who Invented the Unicycle?
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Who Is Your Abuela?
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Who Discovered Electricity?
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Who Was Jim Henson?
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Who Was Jackie Robinson?
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Who Invented Math?
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Who Invented Time?
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Who Invented Weekends?
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Who Is Uncle Sam?
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Who Invented Blue Jeans?